1. To destroy the perpetual funnyness of something funny by use of a lame, moronic comment.

2. To get a powerful ammount of positive feedback. Often used in comedy, Rock and Roll shows, and anything else stage related. Popularized by Manowar.

3. To unplug or turn something off.

1.
Person #1: Are aces high or low?
Person #2: They go both ways.
Person #1: Hahaha.. he said they go both ways.
Person #3: Hehe..
Person #4: Like a bisexual.
Person #1: *stares*
Person #2: Yes.. That was the joke.
Person #3: You killed it.

2. "The whole purpose of playing live is to blow people's heads off,". "That's what we do; that's the energy of this band. We're out there to kick ass. We're out there to turn our Joey DeMaiogear on and blast. We're out there to kill. That's what metal is. Anybody who says otherwise is not playing heavy metal. We will melt your face!"
- Manowar bassist Joey DeMaio